XSS in Vikbooking Hotel Booking Engine & Pms

CVE-2026-85127

The VikBooking Hotel Booking Engine & PMS WordPress plugin before 1.8.15 does not restrict the type of files unauthenticated visitors may attach to its live chat, nor sanitize their contents, allowing them to store active content which is executed in the context of an administrator viewing the conversation.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (39.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-85127: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

  • Vikbooking Hotel Booking Engine & Pms

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-85127?
CVE-2026-85127 is a high-severity vulnerability in Vikbooking Hotel Booking Engine & Pms, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2026-09-18.
How severe is CVE-2026-85127?
High severity. CVSS v3 base score is 8.8 out of 10.